SSI Output. SSI output: 24/25/26 bit binary/gray. SSI Output

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1 SSI output: 24/25/26 bit binary/gray Rugged fully closed design Linear, absolute measurement LEDs for sensor diagnostics Digital technology, stable and reliable Non-contact sensing technology Superior accuracy, resolution down to 1um Repeatability within 0.002% Synchronous measurement for real-time sensing Direct 24/25/26 Bit SSI output, to replaceable encoder Parameters Specifications INPUT Measured variables: Displacement Measured range: 50mm~3000mm by custom Measured points: 1 to 2 loop OUTPUT Interface: Synchronous Serial Interface Data format: Binary or gray Data length: 24 to 32 bit Data speed: 70KBd to 1Mbd, depending on cable length Length: <3 <50 <100 <200 <400 m Baud rate: 1000 <400 <300 <200 <100 KB Update Time: Measurement 0.5ms 1ms 2ms 3ms Measuring length 0.5m 1m 2m 3m ACCURACY Resolution: 1 / 2 / 5 / 10 / 20 / 50 / 100 um Non-linearity : <±0.015% F.S.(minimum 0.06mm) Repeatability: <±0.002% F.S.(or equal to Resolution) Parameters Specifications(continued) Operation conditions Magnet speed: Any Temperature: -40 to 85 Relative humidity: 90% no condensation Temperature coefficient: <15ppm/ Electronic protection: IP65 for RP series type IP67 for RH series type IP68 for custom, only for integral cable model Structural materials Diagnostic display: LED s located beside connector/cable exit RP series Sensor head: Aluminum housing, Diagnostic display (LED s located beside connector) Sensor extrusion: Aluminum Magnet type: Captive-sliding magnet or floating magnet RH series Sensor head: Aluminum housing Sensor rod: 304L Stainless steel Mounting Threaded flange: M18x15, M20x15, or 3/4-16 UNF-3A Any orientation Electronic connection Connection type: 7-pin D70 male connector or integral cable Input voltage: 24V(DC) nominal: -15% or +20% Current drain: less than 90mA Polarity protection: up to -30V(DC) Overvoltage protection: up to 36V(DC) 1

2 Output characteristic The sensor provides SSI(Synchronous Serial Interface) output, which can encoded the displacement value to 24/25/26 bit code((binary/gray) and transmitted to the control device in SSI standard format when receiving a clock signal. The SSI output data format complies with the absolute encoder. And it can directly connect to PLC functional module(such as Siemens SM338 or SM138), so as easy to replace absolute encoder. Timing diagram Clock interval min.16us Clock(+) Logic diagram Absolute position data Microprocessor system Position value=24/25/26 Bit Binary or Gray code Shift register Parallel-serial converter Optocoupler Driver Clock(+) Clock(-) Data(-) LEDs Monitoring and diagnostics Integrated LEDs on sensor head, provide basic visual feedback for sensor operation and troubleshooting. Green Red Description ON OFF Normal working ON Flashing Magnet out of range ON ON Magnet not detected Flashing ON Programming mode 2

3 SSI output Use The sensor provides SSI(Synchronous Serial Interface) output, which can encoded the displacement value to 24/25/26 bit code((binary/gray) and transmitted to the control device in SSI standard format when receiving a clock signal. The SSI output data format complies with the absolute encoder. And it can directly connect to PLC functional module(such as Siemens SM338 or SM138), so as easy to replace absolute encoder. Model RH Rod-style sensor The model RH Rod-style sensor is design for internal mounting in hydraulic cylinders where exist high pressure that achieves 34Mpa(69Mpa peak). With flexible mounting configurations and easy installation, use threaded flange M18x15 or M20x15. Aviation connector Integral cable Home Dead zone Stroke length End Dead zone Home Dead zone Stroke length End Dead zone NOTE: The dead zone on above drawing is that sensor output data is invalid when the magnet on it. The home dead zone and end dead zone are regarded 50.8mm and 63.5mm as default, they are changeable when paying an order. Model RP Profile-style sensor The model RP Rod-style sensor offers modular construction, with flexible mounting configurations and easy external installation, it usually uses for rectilinear motion machine stroke and position detection, also for hydraulic cylinders external position detection. Beginning of stroke - Null position Aviation connector Mounting foot Integral cable Home Dead zone Stroke length End Dead zone Beginning of stroke - Null position Mounting support(non-ferrous material supplied by user) 3

4 Magnet rings and attachments Sensor connections For aviation connector wiring refer to following Pins No For integral cable wiring refer to following Cable Color Cable connector D7 straight exit connector Integral D70 connector as view from end of sensor Pin No. Cable Color Function 1 White Data(-) 2 Yellow 3 Blue Clock(+) 4 Green Clock(-) 5 Red +24Vdc (-15/+20%) 6 Black 0Vdc(for supply) 7 n.c. - D7 90 connector 4

5 SSI output How to order Sensor Model RP = Profile-style(External mounting) RH = Rod-style(Internal/External mounting) Stroke Length 4 digits, 0 to filled the rest, unit in mm. Housing style For RP series: C1 = opening ring magnet C2 = Captive-sliding magnet For RH series: S1 = Metric threads M18x1.5 S3 = Inch thread 3/4-16UNF-3A S2 = Metric threads M20x1.5 S4 = Custom thread Connection Fill in a b c d four blanks with the following codes a: connect type b: cable type cd: cable length D = Integral cable H = high performance cable - unit: Meter P = Aviation connector N = Normal cable - fill 0 on front W = waterproof type - order exceed 10m - exclude cable for aviation connector Output model S a b c d = SSI output(fill in the four blanks with the following codes) a: data length b: data format c: resolution d: orientation 1 = 24 bits B = binary 1 = 0.1 mm 0 = positive 2 = 25 bits G = gray 2 = 0.05 mm 1 = negative 3 = 26 bits 3 = 0.02 mm 4 = 0.01 mm 5 = mm 6 = mm 7 = mm Note: Positive orientation refer to the value decreases when magnet closing to sensor head, negative orientation is on the opposite. Sample: RH M0500 S1 PH02 S2B50 means that RH series, 500mm stroke length, metric thread M18x15, aviation connector, 2m length high performance cable, SSI output(data length 25 bit, binary, resolution 0.005, positive orientation) 5